Choosing cement, bricks and roofing: a buyer’s guide
Buying the right materials is as important as hiring the right builder. Here is a short guide to some of the materials you will meet on almost every project. Always follow the specification on your approved drawings and your engineer’s advice.
Cement: strength classes
Cement bags are marked with a strength class such as 32.5 or 42.5 (megapascals at 28 days). Higher classes gain strength faster and are commonly specified for structural concrete, while lower classes are often used for general building work such as mortar and plaster. Your engineer or drawings should specify what is required.
Bricks and blocks
Common bricks, face bricks and concrete blocks all have their place. Ask about size, compressive strength and whether the unit is suitable for load-bearing walls, foundations or exposed (unplastered) use.
Roofing
Sheet roofing such as IBR or corrugated profiles is quick to install and suits a wide range of roof pitches; tiles are heavier and need a stronger roof structure. Check the sheet thickness (gauge), the coating and the recommended minimum roof pitch.
Questions to ask before you buy
- Does it match the specification on my drawings?
- Is the product suitable for where it will be used (structural, exposed, wet areas)?
- How should it be stored on site?
- Is the quantity correct, including allowance for waste?
Browse our hardware shop or send us your BOQ on WhatsApp (0781484744) for a materials price.
Planning a project? Send us your drawings or BOQ and our team will review your requirements.
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